Device for coating sealant

Abstract

The utility model relates to the field of glue coating devices, in particular to a device for coating sealant, which comprises a device body, the device body comprises a glue injection seat and a glue injector connected with the glue injection seat, the glue injector comprises a glue injection needle, and the glue injection seat comprises a glue injection part capable of extending between a battery shell and a battery inner core. The inner side of the glue injection part is provided with a first accommodating cavity for the battery inner core to extend into, and the glue injection needle head is positioned between the inner side of the battery shell and the outer side of the first accommodating cavity, so that the glue injection needle head is prevented from colliding with a tab of the battery inner core; according to the glue injection device, the glue injection part is arranged on the battery inner core, the first accommodating cavity for the battery inner core to extend into is formed in the glue injection part, and the glue injection needle head is arranged on the outer side of the first accommodating cavity, so that the glue injection needle head is separated from the battery inner core, a tab of the battery inner core is prevented from colliding with the glue injection needle head when the sealant is coated, and the stability and the reliability of sealant coating are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application devices, specifically a device for applying sealant. Background Technology

[0002] Currently, there is a type of steel-cased battery on the market. During its production process, after the battery core is placed inside the battery casing, sealant needs to be applied to the inside of the casing. Then, the bottom cover is connected to the battery casing to keep the inside of the battery sealed and prevent the liquid inside the battery from leaking out. The existing sealant application method uses a syringe needle. After bending the needle, the adhesive-dispensing part of the needle tip is close to the inner wall of the battery casing. Then, by rotating the glue applicator or the battery casing, a ring of sealant is applied to the inner wall of the battery casing. However, because the positions of the tabs of the battery core are not uniform, the needle may collide with the tabs of the battery core when rotating to apply the sealant. This can cause the needle to separate from the inner wall of the battery casing, and the sealant cannot be effectively applied to the inner wall of the battery casing, leading to battery leakage. Therefore, it is necessary to develop a device for applying sealant to solve the problem of the sealant not being effectively applied to the inner wall of the battery casing due to the collision between the needle and the tabs of the battery core. Utility Model Content

[0003] To address the problem mentioned above where existing battery casing sealant application devices fail to effectively coat the inner wall of the battery casing due to the needle colliding with the battery core's tabs during application, the technical solution adopted by this utility model is as follows:

[0004] An apparatus for applying sealant includes an apparatus body, the apparatus body including a dispensing seat and a dispensing device connected to the dispensing seat, the dispensing device including a dispensing needle, the dispensing seat including a dispensing portion that can extend between a battery casing and a battery core, the dispensing portion having a first receiving cavity on its inner side for the battery core to extend into, and the dispensing needle being located between the inner side of the battery casing and the outer side of the first receiving cavity to avoid collision between the dispensing needle and the tabs of the battery core.

[0005] Furthermore, the dispensing seat is provided with a mounting hole for the dispensing needle to extend into, the mounting hole penetrating the dispensing seat and located outside the first accommodating cavity.

[0006] Furthermore, the outer side of the glue injection part is provided with a mounting groove for the glue injection needle to extend into. The mounting groove is connected to the mounting hole so that the glue injection needle passes through the mounting hole and enters the mounting groove. The opening of the glue injection needle is inclined and the opening direction is inclined from the first accommodating cavity towards the battery casing.

[0007] Furthermore, the device body includes a fixing component for fixing the dispensing device. The fixing component includes a fixing hole disposed on the side of the dispensing seat and communicating with the mounting hole, and a fastener connected to the fixing hole by a threaded engagement. The fastener passes through the fixing hole and abuts against the dispensing needle, so that the dispensing needle is fixedly connected to the mounting hole.

[0008] Furthermore, the two mounting holes are symmetrically arranged on the glue injection base, and the fixing components correspond one-to-one with the mounting holes.

[0009] Furthermore, the device body also includes a support and a lifting assembly connected to the support. The lifting assembly includes a fixed seat fixed to the support, a driver A connected to the fixed seat, a telescopic rod connected to the driver A, and a movable seat connected to the telescopic rod. The movable seat is connected to a glue injection seat, and the driver A can control the telescopic rod's extension and retraction.

[0010] Furthermore, the device body also includes a feeding assembly, which includes a turntable, a driver B for driving the turntable to rotate, and a placement platform disposed on the turntable for placing the battery casing. The placement platform is provided with a placement groove that is connected to and cooperates with the battery casing.

[0011] Furthermore, the feeding assembly also includes a driver C for driving the placement table to rotate, and the side wall of the placement slot is provided with a plurality of protrusions, which abut against the battery casing to fix the battery casing in the placement slot.

[0012] Furthermore, the movable seat includes a fixed plate connected to the telescopic rod and a rotating seat connected to the fixed plate. The rotating seat is connected to the glue injection seat. The device body also includes a driver D disposed on the fixed plate and connected to the rotating seat. The driver D is used to drive the rotating seat to rotate.

[0013] Furthermore, the glue injection base also includes a fixing part connected to the movable seat, and an anti-collision part connecting the fixing part and the glue injection part, wherein the diameter of the anti-collision part is larger than the inner diameter of the battery casing.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention provides an injection section that extends between the inner side of the battery casing and the outer side of the battery core. The injection section includes a first receiving cavity into which the battery core extends. An injection needle is positioned outside this first receiving cavity, separating the injection needle from the battery core. This prevents collisions between the battery core's tabs and the injection needle during sealant application, effectively improving the stability and reliability of the sealant coating. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a device for applying sealant according to the present invention.

[0017] Figure 2 This is a schematic diagram showing the connection between the glue injection seat and the glue injector of a device for applying sealant according to this utility model.

[0018] Figure 3 This is a cross-sectional view of the connection between the glue injection seat and the glue injector in a device for applying sealant according to this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of a device for applying sealant according to the present invention.

[0020] Figure 5 This is a schematic diagram showing the connection between the glue injection seat and the glue injector of a device for applying sealant according to this utility model.

[0021] Figure 6 This is a cross-sectional view of the connection between the glue injection seat and the glue injector in a device for applying sealant according to this utility model.

[0022] Figure 7 This is a schematic diagram of the dispensing base and feeding assembly of a device for applying sealant according to this utility model.

[0023] Figure 8 This is a cross-sectional view of the glue injection seat and feeding assembly of a device for applying sealant according to this utility model.

[0024] Figure 9 This is a schematic diagram of the feeding assembly of a device for applying sealant according to this utility model. Detailed Implementation

[0025] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0026] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0027] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] Please see Figures 1 to 9 The device for applying sealant includes a device body 1, which includes a glue injection base 11 and a glue injector 12 connected to the glue injection base 11. The glue injector 12 includes a glue injection needle 121. The glue injection base 11 includes a glue injection section 111 that can extend between the battery casing 2 and the battery core 3. The glue injection section 111 has a first receiving cavity 1111 on its inner side for the battery core 3 to extend into. The glue injection needle 121 is located between the inner side of the battery casing 2 and the outer side of the first receiving cavity 1111 to avoid collision between the glue injection needle 121 and the tab 31 of the battery core 3.

[0029] In the production process of steel-cased batteries, applying sealant to the inside of the battery casing is a crucial step in ensuring battery sealing. Currently, the common method of applying sealant is to use a syringe needle. The needle is bent so that the sealant-dispensing part of the needle is close to the inner wall of the battery casing. By rotating the applicator or the battery casing, a ring of sealant is applied to the inner wall of the battery casing. However, due to the inconsistent position of the tabs on the battery core, the needle is prone to colliding with the tabs on the battery core during the rotating sealant application process. Once a collision occurs, the needle will separate from the inner wall of the battery casing, preventing the sealant from being effectively applied to the inner wall of the battery casing. This greatly increases the risk of battery leakage and seriously affects the quality and safety of the battery.

[0030] Therefore, this utility model designs the glue injection base 11 to have a glue injection part 111 that can extend into the space between the battery casing 2 and the battery core 3, and provides a first receiving cavity 1111 inside the glue injection part 111 so that the battery core 3 can extend into it. At the same time, the glue injection needle 121 is placed between the inner side of the battery casing 2 and the outer side of the first receiving cavity 1111, which fundamentally avoids the collision between the glue injection needle 121 and the tab 31 of the battery core 3 during the glue application process, ensuring the sealing effect of the battery and effectively improving the quality and safety of the battery.

[0031] Furthermore, the dispensing base 11 is provided with a mounting hole 112 for the dispensing needle 121 to extend into, the mounting hole 112 penetrates the dispensing base 11, and the mounting hole 112 is located outside the first receiving cavity 1111.

[0032] In this invention, the mounting hole 112 serves as a connection channel between the injection needle 121 and the injection base 11, ensuring that the injection needle 121 can accurately penetrate into the vicinity of the inner wall of the battery casing 2. Furthermore, the mounting hole 112 penetrates the injection base 11, providing stable support and guidance for the injection needle 121, ensuring that it remains near the inner wall of the battery casing 2 and effectively applying the sealant. In addition, the mounting hole 112 is located outside the first accommodating cavity 1111. This design prevents the injection needle 121 from entering the first accommodating cavity 1111, thus avoiding contact with the battery core 31 or its tabs 31, effectively solving the collision problem caused by inconsistent tab positions during traditional adhesive application.

[0033] Furthermore, the outer side of the glue injection part 111 is provided with a mounting groove 1112 for the glue injection needle 121 to extend into. The mounting groove 1112 communicates with the mounting hole 112 so that the glue injection needle 121 passes through the mounting hole 112 and enters the mounting groove 1112. The opening of the glue injection needle 121 is a bevel and the opening direction is inclined from the first receiving cavity 1111 towards the battery casing 2.

[0034] This invention further fixes and supports the position of the injection needle 121 by providing a mounting groove 1112 for the injection needle 121 to extend into on the outer side of the injection part 111, and connecting the mounting groove 1112 with the mounting hole 112. This prevents the injection needle 121 from colliding with the battery casing 2 and deforming during the injection process, which would prevent the sealant from being effectively coated on the inner wall of the battery casing 2. Specifically, the shape of the mounting groove 1112 matches the shape of the injection needle 121, and the cross-sectional diameter of the mounting groove 1112 is less than or equal to the cross-sectional diameter of the injection needle 121. When the cross-sectional diameter of the mounting groove 1112 is less than that of the injection needle 121, it means that part of the injection needle 121 protrudes from the mounting groove 1112, ensuring that the sealant sprayed from the injection needle 121 can be effectively coated on the battery casing 2. The inner wall of the battery casing 2, and the mounting groove 1112 can fix the injection needle 121 to prevent deformation, effectively improving the reliability and stability of the sealant coating. When the cross-sectional diameter of the mounting groove 1112 is equal to the cross-sectional diameter of the injection needle 121, it means that the injection needle 121 is completely embedded in the mounting groove 1112. This design can further fix the injection needle 121 without affecting the sealant coating, effectively improving the structural stability and reliability. Furthermore, the opening of the injection needle 121 is a bevel, and the opening direction is inclined from the first accommodating cavity 1111 towards the battery casing 2. This design can ensure that the sealant sprayed from the opening of the injection needle can adhere to the inner wall of the battery casing 2 more quickly and effectively, effectively improving the reliability and stability of the sealant coating.

[0035] Furthermore, the device body 1 includes a fixing component 13 for fixing the glue injector 12. The fixing component 13 includes a fixing hole 131 disposed on the side of the glue injection base 11 and communicating with the mounting hole 112, and a fastener 132 connected to the fixing hole 131 by a threaded engagement. The fastener 132 passes through the fixing hole 131 and abuts against the glue injection needle 121, so that the glue injection needle 121 is fixedly connected to the mounting hole 112.

[0036] This invention provides a fixing hole 131 communicating with the mounting hole 112 on the side of the glue injection base 11, and a fastener 132 threadedly engaged with the fixing hole 131. The fastener 132 passes through the fixing hole 131 via a threaded connection and abuts against the glue injection needle 121, thereby firmly fixing the glue injection needle 121 in the mounting hole 112. This ensures that the glue injection needle 121 will not loosen or shift during the glue application process, effectively improving the stability and reliability of the device. In addition, the position of the glue injection needle 121 in the mounting hole 112 can be adjusted by the fixing component 13 to achieve glue application on the inner wall of the battery casing 2 at different heights, effectively improving the flexibility of the device.

[0037] Furthermore, the two mounting holes 112 are symmetrically arranged on the glue injection base 11, and the fixing component 13 corresponds one-to-one with the mounting holes 112.

[0038] This invention, by symmetrically arranging the two mounting holes 112 on the glue-dispensing base 11, allows the device to simultaneously support two glue-dispensing needles 121 for glue application. This reduces the rotation angle required for the device to apply a sealing ring to the inner wall of the battery casing 2. When the glue-dispensing base 11 has only one mounting hole 112, it means that only one glue-dispensing needle 121 is used for glue application. In this case, the glue-dispensing base 11 or the battery casing 2 needs to rotate 360° to complete the glue application to the inner wall of the battery casing 2. However, when the glue-dispensing base 11 is symmetrically arranged... With two mounting holes 112, it means that the two glue-applying needles 121 can perform glue-applying operations simultaneously. At this time, the glue-applying base 11 or the battery casing 2 only needs to rotate 180° to complete the glue application to the inner wall of the battery casing 2, which further improves the glue-applying efficiency. The one-to-one correspondence between the fixing component 13 and the mounting hole 112 means that each mounting hole 112 corresponds to a separate fixing component 13. This one-to-one design ensures that each glue-applying needle 121 can be individually fixed and adjusted, effectively improving the flexibility of the device.

[0039] Furthermore, the device body 1 also includes a support 14 and a lifting assembly 15 connected to the support 14. The lifting assembly 15 includes a fixed seat 151 fixedly connected to the support 14, a driver A152 connected to the fixed seat 151, a telescopic rod 153 connected to the driver A152, and a movable seat 154 connected to the telescopic rod 153. The movable seat 154 is connected to the glue injection seat 11, and the driver A152 can control the telescopic movement of the telescopic rod 153.

[0040] In this invention, the support 14 serves as the basic support component of the entire device, used to fix and connect the lifting assembly 15, ensuring the overall stability of the device. The lifting assembly 15 mainly consists of a fixed base 151, a driver A 152, a telescopic rod 153, and a movable base 154. The fixed base 151 is fixedly connected to the support 14, providing a stable mounting platform for the driver A and the telescopic rod. Correspondingly, the driver A 152 is the power source of the lifting assembly 15, which can drive the telescopic rod 153 to extend and retract via electricity, pneumatic pressure, or hydraulic pressure. Furthermore, the movable base 154 is connected to the glue injection seat 11, so when the movable base 154 moves, the glue injection seat 11 will also move accordingly. 153 is connected to driver A, and its extension or shortening is controlled by driver A, thereby driving the movable seat 154 to move up and down, so that the glue injection seat 11 and the glue injection needle 121 move away from or closer to the battery casing 2. The user can adjust the height and position of the glue injection seat 11 by adjusting the control system to adapt to the manufacturing requirements of batteries of different specifications and models. During the glue application process, driver A 152 drives the glue injection seat 11 closer to the battery casing 2 so that the glue injection needle 121 reaches the designated glue application position. After the glue application is completed, driver A 152 drives the glue injection seat 11 away from the battery casing 2, and the next battery casing 2 arrives at the work station. Then the above steps are repeated. In this way, the automatic glue application of the battery casing 2 can be realized, further improving the automation of glue application.

[0041] Furthermore, the device body 1 also includes a feeding assembly 16, which includes a turntable 161, a driver B162 for driving the turntable 161 to rotate, and a placement platform 163 disposed on the turntable 161 for placing the battery casing 2. The placement platform 163 is provided with a placement groove 1631 that is connected to the battery casing 2.

[0042] In this invention, the turntable 161 is a component of the feeding assembly 16 used to carry and transport the battery casing 2, while the driver B162 is the power source that drives the turntable 161 to rotate. Further, the turntable 161 is provided with a placement platform 163 for placing the battery casing 2. Multiple placement platforms 163 are evenly distributed on the upper side of the placement platform 163 with the axis of the turntable 161 as a reference. Each placement platform 163 can hold one battery casing 2. Specifically, the placement platform 163 is provided with a placement groove 1631 for placing the battery casing 2. The placement groove 1631 matches the shape and size of the battery casing 2 to ensure the battery casing... 2. It can be stably placed on the placement table 163 without slipping or shaking. During the feeding process, the operator places the battery casing 2 on the placement table 163 on the turntable 161 and ensures that it is correctly inserted into the placement slot 1631. Then, the driver B162 is started, driving the turntable 161 to rotate. When the turntable 161 rotates to the glue application station, the battery casing 2 on the placement table 163 is exactly aligned with the glue injection seat 11 and the glue injection needle 121. At this time, the lifting component 15 is started, lowering the glue injection seat 11 and the glue injection needle 121 to an appropriate height to start the glue application process. Therefore, the design of the feeding component 16 greatly improves the automation and efficiency of the glue application process.

[0043] Furthermore, the feeding assembly 16 also includes a driver C164 that drives the placement table 163 to rotate. The side wall of the placement groove 1631 is provided with a plurality of protrusions 1632, which abut against the battery casing 2 to fix the battery casing 2 in the placement groove 1631.

[0044] In the feeding assembly 16, in addition to the driver B162 responsible for driving the overall rotation of the turntable 161, a driver C164 is also provided to drive the partial rotation of the placement platform 163 on the turntable 161. This design allows the placement platform 163 to rotate via the driver C164 when the turntable 161 stops rotating, thereby achieving the coating of sealant on the inner wall of the battery casing 2. Furthermore, multiple protrusions 1632 are provided on the side wall of the placement groove 1631. These protrusions 1632 abut against the outer surface of the battery casing 2, increasing the friction between the placement groove 1631 and the battery casing 2, preventing the battery casing 2 from sliding or shaking during the coating process when the turntable 161 rotates or the lifting assembly 15 descends, effectively improving the stability and reliability of the coating process. Specifically, the multiple protrusions 1632 are evenly distributed on the side wall of the placement groove 1631 to ensure the best fixing effect.

[0045] Furthermore, the movable seat 154 includes a fixed plate 1541 connected to the telescopic rod 153 and a rotating seat 1542 connected to the fixed plate 1541. The rotating seat 1542 is connected to the glue injection seat 11. The device body 1 also includes a driver D17 disposed on the fixed plate 1541 and connected to the rotating seat 1542. The driver D17 is used to drive the rotating seat 1542 to rotate.

[0046] In this utility model, the movable seat 154 includes two parts: a fixed plate 1541 and a rotating seat 1542. The fixed plate 1541 is connected to the telescopic rod 153, serving to support and transmit power. The rotating seat 1542 is connected to the fixed plate 1541 and can rotate relative to the fixed plate 1541. Furthermore, the rotating seat 1542 is connected to the glue injection seat 11. Therefore, when the rotating seat 1542 rotates, the glue injection seat 11 will also rotate accordingly. On this basis, the movable seat 154 is provided with a driver D17, which is connected to the fixed plate 1541 and connected to the rotating seat 1542. The driver D17 can drive the rotating seat 1542 to rotate. By controlling the output of the driver D17, the operator can precisely adjust the rotation angle and speed of the rotating seat 1542, thereby achieving precise alignment and glue application of the glue injection seat 11, further improving the automation and flexibility of the device.

[0047] Furthermore, the glue injection base 11 also includes a fixing part 114 connected to the movable base 154, and an anti-collision part 113 connecting the fixing part 114 and the glue injection part 111, wherein the diameter of the anti-collision part 113 is larger than the inner diameter of the battery casing 2.

[0048] In this utility model, the glue injection base 11 includes three parts: a glue injection part 111, an anti-collision part 113, and a fixing part 114. The glue injection part 111 is the part of the glue injection base 11 that extends between the battery casing 2 and the outside of the first accommodating cavity 1111. The fixing part 114 is the part connected to the movable seat 154. The anti-collision part 113 is connected between the glue injection part 111 and the fixing part 114. The mounting hole 112 passes through the fixing part 114 and the anti-collision part 113, and the diameter of the anti-collision part 113 is larger than the inner diameter of the battery casing 2. This means that when the glue injection needle 121 is inserted into the mounting hole 112, the fixing part 114 and the anti-collision part 113 can effectively protect the glue injection needle 121 and prevent it from colliding with the battery casing 2 and causing deformation, thus effectively improving the reliability and structural stability of the device.

[0049] Example 1

[0050] An apparatus for applying sealant includes an apparatus body 1. The apparatus body 1 includes a glue injection seat 11 and a glue injector 12 connected to the glue injection seat 11. The glue injector 12 includes a glue injection needle 121. The glue injection seat 11 includes a glue injection portion 111 that can extend between a battery casing 2 and a battery core 3. The glue injection portion 111 has a first receiving cavity 1111 on its inner side for the battery core 3 to extend into. The glue injection needle 121 is located between the inner side of the battery casing 2 and the outer side of the first receiving cavity 1111 to avoid collision between the glue injection needle 121 and the tab 31 of the battery core 3.

[0051] Example 2

[0052] Example 2, based on Example 1, also has the following implementation method:

[0053] The dispensing base 11 is provided with a mounting hole 112 for the dispensing needle 121 to extend into. The mounting hole 112 penetrates the dispensing base 11 and is located outside the first receiving cavity 1111.

[0054] Example 3

[0055] Example 3, based on Example 2, also has the following implementation method:

[0056] The outer side of the glue injection part 111 is provided with a mounting groove 1112 for the glue injection needle 121 to extend into. The mounting groove 1112 communicates with the mounting hole 112 so that the glue injection needle 121 passes through the mounting hole 112 and enters the mounting groove 1112. The opening of the glue injection needle 121 is a bevel and the opening direction is inclined from the first accommodating cavity 1111 towards the battery casing 2.

[0057] Example 4

[0058] Example 4, based on Example 2, also has the following implementation method:

[0059] The device body 1 includes a fixing component 13 for fixing the glue injector 12. The fixing component 13 includes a fixing hole 131 disposed on the side of the glue injection base 11 and communicating with the mounting hole 112, and a fastener 132 connected to the fixing hole 131 by a threaded engagement. The fastener 132 passes through the fixing hole 131 and abuts against the glue injection needle 121, so that the glue injection needle 121 is fixedly connected to the mounting hole 112.

[0060] Example 5

[0061] Example 5, based on Example 4, further includes the following implementation method:

[0062] The two mounting holes 112 are symmetrically arranged on the glue injection base 11, and the fixing component 13 corresponds one-to-one with the mounting holes 112.

[0063] Example 6

[0064] Example 6, based on Example 1, also has the following implementation method:

[0065] The device body 1 also includes a support 14 and a lifting assembly 15 connected to the support 14. The lifting assembly 15 includes a fixed seat 151 fixed to the support 14, a driver A152 connected to the fixed seat 151, a telescopic rod 153 connected to the driver A152, and a movable seat 154 connected to the telescopic rod 153. The movable seat 154 is connected to the glue injection seat 11. The driver A152 can control the telescopic movement of the telescopic rod 153.

[0066] Example 7

[0067] Example 7, based on Example 1, also has the following implementation method:

[0068] The device body 1 also includes a feeding assembly 16, which includes a turntable 161, a driver B162 for driving the turntable 161 to rotate, and a placement platform 163 disposed on the turntable 161 for placing the battery casing 2. The placement platform 163 is provided with a placement groove 1631 that is connected to the battery casing 2.

[0069] Example 8

[0070] Based on Example 7, Example 8 further includes the following implementation method:

[0071] The feeding assembly 16 also includes a driver C164 that drives the placement table 163 to rotate. The side wall of the placement groove 1631 is provided with a plurality of protrusions 1632. The protrusions 1632 abut against the battery casing 2 so that the battery casing 2 is fixed in the placement groove 1631.

[0072] Example 9

[0073] Example 9, based on Example 6, also has the following implementation method:

[0074] The movable seat 154 includes a fixed plate 1541 connected to the telescopic rod 153 and a rotating seat 1542 connected to the fixed plate 1541. The rotating seat 1542 is connected to the glue injection seat 11. The device body 1 also includes a driver D17 disposed on the fixed plate 1541 and connected to the rotating seat 1542. The driver D17 is used to drive the rotating seat 1542 to rotate.

[0075] Example 10

[0076] Based on Example 6, Example 10 also has the following implementation method:

[0077] The glue injection base 11 also includes a fixing part 114 connected to the movable base 154, and an anti-collision part 113 connecting the fixing part 114 and the glue injection part 111. The diameter of the anti-collision part 113 is larger than the inner diameter of the battery casing 2.

[0078] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A device for sealing with mastic, comprising a device body (1), characterized in that, The device body (1) includes a glue injection base (11) and a glue injector (12) connected to the glue injection base (11). The glue injector (12) includes a glue injection needle (121). The glue injection base (11) includes a glue injection part (111) that can extend into the space between the battery casing (2) and the battery core (3). The glue injection part (111) has a first accommodating cavity (1111) for the battery core (3) to extend into. The glue injection needle (121) is located between the inner side of the battery casing (2) and the outer side of the first accommodating cavity (1111) to avoid collision between the glue injection needle (121) and the tab (31) of the battery core (3).

2. A device for applying sealant as claimed in claim 1, wherein, The dispensing seat (11) is provided with a mounting hole (112) for the dispensing needle (121) to extend into. The mounting hole (112) penetrates the dispensing seat (11) and is located outside the first accommodating cavity (1111).

3. A device for applying sealant as claimed in claim 2, wherein, The glue injection part (111) has an installation groove (1112) on the outside for the glue injection needle (121) to extend into. The installation groove (1112) is connected to the installation hole (112) so that the glue injection needle (121) passes through the installation hole (112) and enters the installation groove (1112). The opening of the glue injection needle (121) is a bevel and the opening direction is inclined from the first accommodating cavity (1111) towards the battery casing (2).

4. A device for applying sealant as claimed in claim 2, wherein, The device body (1) includes a fixing component (13) for fixing the glue injector (12). The fixing component (13) includes a fixing hole (131) disposed on the side of the glue injection seat (11) and communicating with the mounting hole (112), and a fastener (132) connected to the fixing hole (131) by a threaded engagement. The fastener (132) passes through the fixing hole (131) and abuts against the glue injection needle (121) so that the glue injection needle (121) is fixedly connected to the mounting hole (112).

5. A device for applying sealant as claimed in claim 4, wherein, The two mounting holes (112) are symmetrically arranged on the glue injection seat (11), and the fixing component (13) corresponds one-to-one with the mounting holes (112).

6. A device for applying sealant as defined in claim 1, wherein The device body (1) also includes a support (14) and a lifting assembly (15) connected to the support (14). The lifting assembly (15) includes a fixed seat (151) fixed to the support (14), a driver A (152) connected to the fixed seat (151), a telescopic rod (153) connected to the driver A (152), and a movable seat (154) connected to the telescopic rod (153). The movable seat (154) is connected to the glue injection seat (11). The driver A (152) can control the telescopic rod (153) to extend and retract.

7. The device for applying sealant of claim 1, wherein, The device body (1) also includes a feeding assembly (16), which includes a turntable (161), a driver B (162) for driving the turntable (161) to rotate, and a placement platform (163) provided on the turntable (161) for placing the battery casing (2). The placement platform (163) is provided with a placement groove (1631) that is connected to the battery casing (2).

8. A device for applying sealant as defined in claim 7, wherein The feeding assembly (16) also includes a driver C (164) for driving the placement table (163) to rotate. The side wall of the placement groove (1631) is provided with a plurality of protrusions (1632). The protrusions (1632) abut against the battery casing (2) to fix the battery casing (2) in the placement groove (1631).

9. A device for applying sealant as defined in claim 6, wherein The movable seat (154) includes a fixed plate (1541) connected to the telescopic rod (153) and a rotating seat (1542) connected to the fixed plate (1541). The rotating seat (1542) is connected to the glue injection seat (11). The device body (1) also includes a driver D (17) disposed on the fixed plate (1541) and connected to the rotating seat (1542). The driver D (17) is used to drive the rotating seat (1542) to rotate.

10. The device for applying sealant of claim 6, wherein, The glue injection base (11) also includes a fixing part (114) connected to the movable base (154) and an anti-collision part (113) connecting the fixing part (114) and the glue injection part (111), wherein the diameter of the anti-collision part (113) is larger than the inner diameter of the battery casing (2).

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